Multiple door-bolt.



J.v GOLDEN. MULTIPLE DOOR BOLT.

APPLICATION FILED APBJB, 1910.

966,1 v v Patented Aug. 2,'- 1910.

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h l JJaZJ imm JOSEPH GOLDEN, OF BROOKLYN, NEW YORK.

MULTIPLE DOOR-BOLT.

Specification of Letters Patent.

Patented Aug. 2, 1910.

Application led April 18, 1910. Serial No. 556,012.

To all whom it may concern:

Be it known that I, JOSEPH GOLDEN, a citizen of the United States,residing at Brooklyn, in the county of Kings and State of New York, haveinvented certain new and useful Improvements in Multiple Door- Bolts, ofwhich the following is a specification, reference being had to theaccompanying drawings.

This invention relates to improvements in multiple door bolts and moreparticularly to bolts especially adapted for locking a scuttle.

The object of the invention is to provide a simple and practical scuttlelock whereby the scuttle may be quickly opened in case of lire, and willbe securely locked against thieves.

With the above and other objects in view, the invention consists in thenovel construction, combination and arrangement of parts, hereinafterfully described and claimed, and illustrated in the accompanyingdrawings in which:-

Figure 1 is a vertical section through a scuttle illustrating theapplication of my multiple bolt lock thereto; and Fig. 2 is a sectionalview taken on the plane indicated by the line 2 2 in Fig. 1.

Referring more particularly to the drawings 1 denotes a roof or otherstructure having a scuttle opening 2 closed by a scuttle 3.

My improved lock comprises a rotatably mounted pivot or shaft 4 arrangedat or adjacent to the center of the inner side of the scuttle and havingan enlarged base portion 5 which is rotatably arranged in a bearing andattaching plate 6, the latter being apertured and secured by screws orsimilar fastenings 7 The free end of the pivot 4 has a handle 8 and onits intermediate portion is a flange or collar 9 from which radiate fourbolt-actuating arms or links 10. The arms or links 10 have their outerends connected to slidably mounted bolts 11 arranged in casing members12 containing springs 13, which latter project the bolts outwardly intoengagement with keeper plates 14 secured, as shown at 15, to the wallsof the scuttle opening 2. The outer extremities of the bolts 11 arebeveled as shown at 16, and the upper faces of the keeper plates 14 arebeveled at 17, whereby when the scuttle is lowered into position thedevice will be selflocking. The connecting links or arms 10 arelongitudinally extensible and are composed of overlapped metal strapsections 18 formed with longitudinal series of openings 19 adapted toreceive connecting bolts 20. The strap sections 18 have theirextremities pivoted to the flange 9 and the bolts 11, as shown at 21 and22 respectively.

From the foregoing it will be seen that the peculiar construction of myimproved lock will enable it to be quickly and easily adjusted for andapplied to scuttles of different sizes, and that it will effectivelylock the scuttle against thieves. Furthermore, by simply turning thehandle 8 in either direction, the bolts 11 are simultaneously retractedfrom engagement with the keepers 14, whereby the scuttle may be quicklyraised, and when the scuttle is lowered into position the bolts areself-locking.

I-Iaving thus described the invention, what is claimed is:

The herein described multiple door bolt comprising in combination with ascuttle frameand a scuttle cover, beveled keeper plates secured in theframe at opposite points, an attaching and bearing plate securedcentrally to the bottom face of the cover, and formed with a centrallyarranged under cut bearing opening, a pivot having an enlarged upper endrotatable in said bearing opening, and a handle upon its lower end, theintermediate portion of said pivot being formed with a radiallyprojecting flange, brackets secured to the bottom face of the coveradjacent to said keepers and containing spring projected bolts havingbeveled ends to co-act with said keeper plates, and longitudinallyextensible' links arranged radially with respect to said pivot, andhaving their inner ends pivoted to its flange, and their outer endspivoted to said bolts.

In testimony whereof I hereunto affix my signature in the presence oftwo witnesses.

JOSEPH GOLDEN.

Witnesses:

J oHN P. BERGEMANN, Jr., WILLIAM H. BOURNE.

